CN116234534A - Cosmetic composition for improving skin appearance - Google Patents

Abstract

A cosmetic composition comprising: i) Aluminum starch octenyl succinate; and ii) ingredients of aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate, INCI name.

Description

Cosmetic composition for improving the appearance of skin

Technical Field

The present invention relates to cosmetic compositions for improving the appearance of skin.

Background Art

The present invention relates to a cosmetic composition for improving the appearance of the skin, the improvement being noticeable, preferably immediate. Further, the improvement is preferably long-lasting. Alternatively, the improvement can be easily detected by the eye, and a machine can be used for this purpose.

Wrinkles and fine lines are primarily noticeable as dark, non-reflective areas because light strikes and stays there. In contrast, if light is reflected and diffused, wrinkles are less noticeable. Methods have been developed to project light into wrinkles and instantly eliminate the dark areas. Substances that produce optical blur are used. This is called the "soft focus effect" and is described by Dr. Emmert in "Quantification of the Soft-Focus Effect", Cosmetics and Toiletries, Vol. 111, 57-61 (1996). Soft focus or blurring is a technique that can be used to hide or cover up superficial or surface imperfections of the skin. The incident light is distorted by scattering (lensing).

Sometimes the skin produces more sebum, which can happen to people of any age. Most of us want a matte or non-greasy look on our skin, especially on our face.

Aging causes changes in the appearance of your skin. Some people are concerned about the appearance of wrinkles, age spots, or uneven skin tone.

Our skin is susceptible to deterioration due to skin diseases, environmental factors (such as strong sunlight) and the normal aging process (chronological aging), which may be accelerated by exposure to sunlight (photoaging). In recent years, the demand for cosmetic compositions and cosmetic methods for improving the appearance of the skin has increased dramatically. Consumers are increasingly seeking cosmetic compositions to treat, delay or conceal the visible signs of chronologically and photoaged skin, such as wrinkles, fine lines, sagging, pigmentation and age spots.

While it is desirable to hide imperfections with a matte finish, it is also desirable to achieve a healthy skin glow. Makeup that is too opaque hides the skin beneath a lacquer-like coating. Some people consider this to be whitening or brightening the skin.

BR 102017025745 A2 (UNIVSAO PAULO, 2017) discloses a cosmetic base having a pleasant feel with a dry touch that avoids oily residues. The composition comprises 3 to 10% cassava starch and 3 to 10% corn starch. It is disclosed that the two starches have a synergistic effect.

US 2020/000721 A (Medreleaf) discloses an aqueous composition comprising a rheology modifier, the rheology modifier comprising a water-swellable polymer and a co-emulsifier, which is suitable for preparing a cream formulation containing oil. In one example, the composition comprises PPG-3 benzyl ether ethylhexanoate, glycerin and a rheology modifier, the rheology modifier comprising sodium polyacrylate, ethylhexyl cocoate, PPG-3 phenyl ether myristate, a co-emulsifier (such as polysorbate 20) and an antimicrobial agent.

Summary of the invention

We have determined that a combination of two cosmetic ingredients can provide a variety of cosmetic benefits to the skin, including brightening and moisturizing, when used in specific weight ratios.

According to a first aspect, a cosmetic composition is disclosed, comprising:

i) Aluminum Starch Octenylsuccinate; and

ii) ingredient with the INCI name Aluminum Starch Octenylsuccinate (and) Acrylates Copolymer (and) Magnesium Carbonate;

The weight ratio of the component with the INCI name of starch octenyl succinate aluminum (and) acrylate copolymer (and) magnesium carbonate composition to the starch octenyl succinate aluminum in the composition is 1:0.5 to 1:5.

According to a second aspect, a use of the cosmetic composition of the first aspect for improving at least one property of the skin is disclosed. Preferably, the at least one property is oil control, moisturizing, brightening or pore-blurring of the skin.

According to a third aspect, a method for improving at least one property of the skin is disclosed, comprising treating the skin with the cosmetic of the first aspect. Preferably, the at least one property is oil control, moisturizing, brightening or pore concealment of the skin.

All other aspects of the invention will become more readily apparent by consideration of the following detailed description and examples.

DETAILED DESCRIPTION

definition

As used herein, "skin" is meant to include skin on the face, neck, scalp, underarms, chest, back, arms, hands, legs, head, feet, buttocks and abdomen, preferably skin on the hands, neck, face and underarms.

Surface imperfections of the skin refer to and include blemishes (age spots, scars), pores, fine lines and wrinkles, and grooves (the terms "lines," "wrinkles," and grooves are used interchangeably herein). "Age spots," as used herein, refer to any hyperpigmentation (including, for example, solar lentigo), spots, and/or freckles.

As used herein, the term "treating" or "treatment" includes within its scope the reduction, delay and/or prevention of the above-mentioned skin conditions, and generally enhances the quality of the skin and improves its appearance and texture.

As used herein, "cosmetic composition" is intended to include compositions for topical application to mammalian (particularly human) skin. Such compositions can generally be classified as either wash-off or rinse-off, and are preferably wash-off. The composition may be in the form of a liquid, lotion, cream, foam, scrub, gel or toner, or applied with an appliance or through a mask or pad. Non-limiting examples include wash-off skin care lotions, creams, foundations, sunless tanners, and sunscreen lotions.

Except in the examples or otherwise clearly indicated, all numbers indicating the amount of material or reaction conditions, material physical properties and/or uses in this specification may be optionally understood to be modified by the word "about". Unless otherwise stated, all amounts are by weight of the final composition. The term "solid" used herein means that the material is not fluid at 25°C. It should be noted that when specifying any range of values, a given upper limit value may be associated with any lower limit value. To avoid doubt, the word "comprising" is intended to mean "including" but not necessarily "consisting of" or "composed of". In other words, the steps or options listed do not need to be exhaustive. The disclosure of the invention found herein is considered to cover all embodiments found in the claims that are multiple dependent on each other, without considering the fact that the claims can be found to have no multiple dependencies or redundancy.

Where features are disclosed with respect to a particular aspect of the invention (eg, a composition of the invention), such disclosure is also considered applicable, mutatis mutandis, to any other aspect of the invention (eg, a method of the invention).

The present invention relates to a cosmetic composition comprising:

i) aluminum starch octenylsuccinate; and

ii) ingredient with the INCI name ALUMINUM STARCH OCTENYLSUCCINIC ACIDS (AND) ACRYLATES COPOLYMER (AND) MAGNESIUM CARBONATE;

The weight ratio of the component with the INCI name of starch octenyl succinate aluminum (and) acrylate copolymer (and) magnesium carbonate composition to the starch octenyl succinate aluminum in the composition is 1:0.5 to 1:5.

INCI Standard for the International Nomenclature of Cosmetic Ingredients. The INCI system was established in the early 1970s by the Personal Care Products Council (formerly CTFA, the Cosmetic, Toiletry, and Fragrance Association), and the lists are maintained by the Personal Care Products Council. INCI names are used to list ingredients on cosmetic labels in the United States, the European Union, China, Japan, and many other countries. With very few exceptions, the INCI label names are the same for all countries.

For more detailed information on INCI names, please visit the following website: http://webdictionary.personalcarecouncil.org/jsp/Home.jsp

Preferably, the composition comprises from 0.1 to 5% by weight of the ingredient with the INCI name ALUMINUM STARCH OCTENYLSUCCINIC ACIDS (AND) ACRYLATES COPOLYMER (AND) MAGNESIUM CARBONATE.

Further preferably, the composition comprises 0.5 to 15% by weight of the aluminum starch octenyl succinate. In the composition, the weight ratio of the component with the INCI name of aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate composition to the aluminum starch octenyl succinate is 1:0.5 to 1:5.

Pure和Dry

PC商购获得。许多其他供应商以其自己的商标名称销售它。在化妆品和个人护理产品中，淀粉辛烯基琥珀酸铝用于配制洗液、粉末、化妆品和腋下除臭剂。其用作增稠剂和粘合剂、防结块剂和吸油剂。Starch aluminum octenyl succinate is a chemically modified starch, in particular an esterified starch. This starch aluminum octenyl succinate is available from suppliers such as Akzo Nobel or Nouryon under the name Dry

Pure and Dry

PC is commercially available. Many other suppliers sell it under their own brand names. In cosmetics and personal care products, aluminum starch octenylsuccinate is used to formulate lotions, powders, makeup, and underarm deodorants. It is used as a thickener and binder, anti-caking agent, and oil absorbent.

HFB获得。天然含量为81％，建议的应用包括抗湿产品、控油产品、无水产品、止汗棒、防晒霜和干洗香波，具有多种功效，包括吸油、缓解脱水收缩和留香。The ingredients with the INCI names Aluminum Starch Octenylsuccinate (and) Acrylates Copolymer (and) Magnesium Carbonate are available from, for example, Nouryon as

Obtained by HFB. With a natural content of 81%, suggested applications include anti-humidity products, oil control products, anhydrous products, antiperspirant sticks, sunscreens and dry shampoos, with multiple benefits including oil absorption, syneresis relief and fragrance retention.

The literature for the Nouryon ingredient discloses that it is cross-linked starch aluminum octenyl succinate surface treated with an acrylate copolymer and magnesium carbonate.

It has been determined that the cosmetic composition of the present invention can improve at least one property of the skin. Preferably, the at least one property is oil control, moisturizing, brightening or pore concealment of the skin.

Preferably, the cosmetic composition according to the invention comprises a polyacrylate emulsifier or an emulsifier comprising a polyacrylate.

An emulsion is a system consisting of two or more immiscible materials in which one material (the discontinuous or internal phase) is suspended or dispersed as separate droplets in another material (the continuous or external phase). The immiscible phase can be water, oil or silicone.

When preparing emulsions, surfactants called emulsifiers are used to slow down the separation of immiscible phases. Proper use of emulsifiers can make oily or waxy substances and water form a uniform mixture, dispersion or emulsion.

Preferably the emulsifier is shear thinning and non-thixotropic. Depending on the type of rheology modifier, when the formulation is subjected to high shear stress, it will cause a rapid drop in viscosity. This effect is known as shear thinning. Thixotropic liquids show a time-dependent viscosity rebuilding after shear force is applied. Once the shear force stops, the viscosity recovers over time.

It is further preferred that the emulsifier is self-emulsifying and comprises an inverting surfactant.

Further preferably, the shear thinning, non-thixotropic, self-emulsifying rheology modifier is a polyacrylate polymer dispersed in a carrier oil containing an inverting surfactant.

A preferred emulsifier is the material having the INCI name Sodium Polyacrylate (and) Ethylhexyl Cocoate (and) PPG-3 Benzyl Ether Myristate (and) Polysorbate 20. This emulsifier is commercially available as ViscOptima ^™ SE.

ViscOptima ^™ SE is a polyacrylate polymer dispersed in a carrier oil containing an inverting surfactant. When added to water, ViscOptima SE inverts to form an oil-in-water emulsion, causing the polyacrylate molecules to swell by osmosis and thus thicken the aqueous phase. ViscOptima SE has a shear-thinning rheology and is non-thixotropic. This results in a decrease in viscosity when force is applied to the formulation (e.g., during pumping or spraying), and immediate recovery of viscosity when force is no longer applied.

Preferably and optionally, the emulsifier is one or more of the following: Sodium Polyacrylate (and) Isotridecyl Isononanoate (and) Trideceth-6 (available as ViscOptima ^™ LV), Sodium Polyacrylate (and) Paraffinum Liquidum (and) Trideceth-6 (available as ViscOptima ^™ PL), Sodium Polyacrylate (and) Hydrogenated Polydecene (and) Trideceth-6 (available as Rapithix A-60), Sodium Polyacrylate (and) Dicaprylyl Carbonate (and) Polyglyceryl-3 Caprate (available as ViscOptima™ LV). Carbonate (and) Polyglyceryl-3 Caprate) (available as Cosmedia ACE), Acrylates/Acrylamide Copolymer and Mineral Oil and Polysorbate 85 (November EC-1), or Sodium Polyacrylate (available as Cosmedia SP).

Cosmetically acceptable carriers and other ingredients

The cosmetic composition of the present invention further comprises a cosmetically acceptable carrier.

In some embodiments, the carrier is an emulsion, preferably a water-in-oil emulsion. Such emulsions are also known as inverse emulsions. Alternatively, the composition comprises a carrier that is an oil-in-water emulsion.

Preferably the oil phase of such emulsions comprises an emollient, preferably a fat, oil, fatty alcohol, fatty acid, soap, silicone oil, synthetic ester and/or hydrocarbon.Many organic sunscreens are also hydrophobic materials and may be used alone or in combination with one or more of the foregoing emollients.

Silicones can be divided into volatile and non-volatile types. Volatile silicone oils (if used) are preferably selected from cyclic (cyclomethicone) or linear polydimethylsiloxanes containing 3 to 9, preferably 4 to 5 silicon atoms. Preferred non-volatile silicones are polyalkylsiloxanes, polyalkylarylsiloxanes or polyethersiloxane copolymers. Substantially non-volatile polyalkylsiloxanes useful herein include, for example, polydimethylsiloxanes.

When the cosmetic composition of the present invention includes an organopolysiloxane crosspolymer, the polymer is preferably dimethicone/vinyl dimethicone crosspolymer or dimethicone crosspolymer (available from various suppliers, including Dow Corning (9040, 9041, 9045, 9506 and 9509), General Electric (SFE 839), Shin Etsu (KSG-15, 16 and 18 [dimethicone/phenyl vinyl dimethicone crosspolymer]), and Grant Industries (Gransil brand material), as well as lauryl dimethicone/vinyl dimethicone crosspolymer supplied by Shin Etsu (supplied by Shin Etsu (e.g., KSG-31, KSG-32, KSG-41, KSG-42, KSG-43 and KSG-44)).

When the composition includes a non-silicone emollient, the emollient is preferably stearyl alcohol, glyceryl monoricinoleate, mink oil, cetyl alcohol, isopropyl isostearate, stearic acid, isobutyl palmitate, isocetyl stearate, oleyl alcohol, isopropyl laurate, hexyl laurate, decyl oleate, octadecane-2-ol, isocetyl alcohol, eicosanol, behenyl alcohol, cetyl palmitate, di-n-butyl sebacate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, stearic acid, isopropyl palmit ... Butyl stearate, polyethylene glycol, triethylene glycol, lanolin, cocoa butter, corn oil, cottonseed oil, olive oil, palm kernel oil, rapeseed oil, safflower seed oil, evening primrose oil, soybean oil, sunflower seed oil, avocado oil, sesame seed oil, coconut oil, peanut oil, castor oil, acetylated lanolin alcohol, petrolatum, mineral oil, butyl myristate, isostearic acid, palmitic acid, isopropyl linoleate, lauryl lactate, myristyl lactate, decyl oleate, myristyl myristate and mixtures thereof.

Among the ester emollients are alkenyl or alkyl esters of fatty acids having 10 to 20 carbon atoms. Examples include isoarachidyl neopentanoate, isodecyl neopentanoate, isononyl isononanoate, cetyl ricinoleate, oleyl myristate, oleyl stearate and oleyl oleate; ether-esters, such as fatty acid esters of ethoxylated fatty alcohols; polyol esters, butylene glycol, ethylene glycol mono- and di-fatty acid esters, diethylene glycol mono- and di-fatty acid esters, polyethylene glycol (200-6000) mono- and di-fatty acid esters, propylene glycol mono- and di-fatty acid esters. Esters, polypropylene glycol 2000 monooleate, polypropylene glycol 2000 monostearate, ethoxylated propylene glycol monostearate, glycerol mono- and di-fatty acid esters, polyglycerol poly-fatty acid esters, ethoxylated glycerol monostearate, 1,3-butylene glycol monostearate, 1,3-butylene glycol distearate, polyoxyethylene polyol fatty acid esters, sorbitan fatty acid esters and polyoxyethylene sorbitan fatty acid esters are satisfactory polyol esters. Particularly useful are pentaerythritol, trimethylolpropane and neopentyl glycol esters of C1-30 alcohols. Exemplary are pentaerythritol tetraethylhexanoate; wax esters such as beeswax, spermaceti and tribehenin wax; sterol esters, examples of which are cholesterol fatty acid esters; sugar esters of fatty acids such as sucrose polybehenate and sucrose polycottonate; or mixtures of two or more of the foregoing (a) to (f).

Hydrocarbons that are suitable emollients include petrolatum, mineral oil, C11-C13 isoparaffins, polyalphaolefins, isohexadecane, or mixtures thereof.

In a particularly preferred embodiment, the hydrophobic material comprises 1 to 25% by weight of a fatty acid or 0.1 to 80% by weight of soap, based on the weight of the composition. A mixture of fatty acids and soap is also suitable, such as a vanishing cream base, which gives the skin a highly appreciated matte feel. The present invention particularly prefers C12 to C20 fatty acids, more preferably C14 to C18 fatty acids. The most preferred fatty acids are stearic acid, palmitic acid or a mixture thereof. The fatty acid in the composition is more preferably present in an amount of 5 to 20% by weight of the composition. Soap may include an alkali metal salt of a fatty acid, such as a sodium salt or potassium salt, most preferably potassium stearate. Soap is preferably present in an amount of 0.1 to 10% by weight, more preferably 0.5 to 3% by weight, based on the weight of the composition. Typically, the vanishing cream base in the skin care composition is prepared by taking the desired amount of total fatty matter and mixing it with the desired amount of potassium hydroxide. Soap is typically formed in situ during mixing.

Preferably, the cosmetic composition of the present invention comprises 20 to 80% by weight of water, more preferably 40 to 75% by weight of water. This water constitutes part of the carrier.

In addition to the ingredients already described, preferably the cosmetic composition of the present invention comprises 0.001 to 5 wt%, more preferably 0.05 to 4 wt% of a skin lightening agent. Preferably, the skin lightening agent is a vitamin B3 compound or a derivative thereof, such as niacin, nicotinic acid or niacinamide. More preferably, the skin lightening agent is niacinamide. Alternatively, the skin lightening agent is at least one of the following: aloe extract, ammonium lactate, anethole derivatives, apple extract, arbutin, azelaic acid, kojic acid, bamboo extract, bearberry extract, bletilla, bupleurum extract, burnet extract, butylated hydroxyanisole, butylated hydroxytoluene, citrate, chuanxiong, Dang-Gui, deoxyarbutin, 1,3-diphenylpropane derivatives, 2,5-dihydroxybenzoic acid and its derivatives, 2-(4-acetoxyphenyl)-1,3-dithiane, 2-(4-hydroxyphenyl)-1,3-dithiane, ellagic acid, escinol, estragole derivatives, Fadeout (Pentapharm), Fangfeng, fennel extract, ganoderma lucidum extract, gaoben, Gatuline Whitening (Gattlefosse), genistic acid and its derivatives, glabridin and its derivatives, glucopyranosyl 1-ascorbic acid, gluconic acid, glycolic acid, green tea extract, 4-hydroxy-5-methyl-3[2H]-furanone, hydroquinone, 4-hydroxyanisole and its derivatives, 4-hydroxybenzoic acid derivatives, hydroxyoctanoic acid, inositol ascorbic acid, lemon extract, linoleic acid, magnesium ascorbyl phosphate, Melawhite (Pentapharm), mulberry (morusalba) extract, mulberry root extract, 5-octyl salicylic acid, parsley extract extracts, pyrogallol derivatives, 2,4-sorbitol derivatives, 3,5-resorcinol derivatives, rose hip extracts, salicylic acid, Song-Yi extracts, 3,4,5-trihydroxybenzyl derivatives, tranexamic acid, vitamins such as vitamin B6, vitamin B12, vitamin C and its derivatives, vitamin A, dicarboxylic acids, plant (rubia and symplocos) extracts, hydroxycarboxylic acids such as lactic acid and its salts such as sodium lactate, and mixtures thereof.

Further preferably, the cosmetic composition of the present invention comprises one or more organic sunscreens. A variety of organic sunscreens are suitable for use in combination with the essential ingredients of the present invention. Suitable UV-A/UV-B sunscreens include 2-hydroxy-4-methoxybenzophenone, octyl dimethyl para-aminobenzoic acid, digalloyl trioleate, 2,2-dihydroxy-4-methoxybenzophenone, ethyl 4-(bis(hydroxypropyl))aminobenzoate, 2-ethylhexyl 2-cyano-3,3-diphenylacrylate, 2-ethylhexyl salicylate, glyceryl para-aminobenzoate, 3,3 ,5-trimethylcyclohexanol salicylate, methyl anthranilate, p-dimethylaminobenzoic acid or aminobenzoate, p-dimethylaminobenzoic acid 2-ethylhexyl ester, 2-phenylbenzimidazole-5-sulfonic acid, 2-(p-dimethylaminophenyl)-5-sulfonic acid benzoxazole carboxylic acid, p-methoxycinnamic acid 2-ethylhexyl ester, butyl methoxydibenzoylmethane, 2-hydroxy-4-methoxybenzophenone, p-aminobenzoic acid octyl dimethyl ester and mixtures thereof. The most suitable organic sunscreen is 2-ethylhexyl-p-methoxycinnamic acid ester, butyl methoxydibenzoylmethane or mixtures thereof.

A safe and effective amount of organic sunscreen can be used in the composition of the present invention. The composition preferably comprises 0.1 to 10%, more preferably 0.1 to 5% of organic sunscreen.

Other materials that may be included in the cosmetically acceptable carrier include solvents, humectants, thickeners, and powders. Examples of each of these types of materials (which may be used alone or as a mixture) are as follows:

The solvent includes ethanol, isopropanol, acetone, ethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, and mixtures thereof.

Wetting agents include those of the polyol type. Typical polyols include polyalkylene glycols, and more preferably alkylene polyols and derivatives thereof, including propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol and derivatives thereof, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, isoprene glycol, 1,2,6-hexanetriol, glycerine, ethoxylated glycerine, propoxylated glycerine and mixtures thereof. The amount of wetting agent can be, for example, 0.5 to 50% by weight of the composition weight, more preferably 1 to 15% by weight. Glycerine (also referred to as glycerol) is most preferred. The amount of glycerine can be, for example, 0.5 to 50% by weight of the composition weight, more preferably 1 to 35% by weight, most preferably 2 to 15% by weight.

980、

1342、

TR-2和

增稠剂、多糖(包括黄原胶、瓜尔胶、果胶、卡拉胶和菌核胶)、纤维素(包括羧甲基纤维素、乙基纤维素、羟乙基纤维素和甲基羟甲基纤维素)、矿物(包括滑石、二氧化硅、氧化铝、云母和粘土，后者以膨润土、锂云母和凹凸棒石为代表)、硅酸铝镁及其混合物。增稠剂的量例如可以为组合物重量的0.05至10重量％，更优选为0.3至5重量％。Various thickeners may be included in the composition. Exemplary but not limiting are stearic acid, acrylamide/sodium acryloyldimethyl taurate copolymer (Aristoflex AVC), hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, aluminum starch octenylsuccinate, polyacrylates (such as Carbomers, including

980,

1342,

TR-2 and

Thickeners, polysaccharides (including xanthan gum, guar gum, pectin, carrageenan and sclerotium gum), cellulose (including carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose and methyl hydroxymethyl cellulose), minerals (including talc, silica, alumina, mica and clay, the latter represented by bentonite, lepidolite and attapulgite), magnesium aluminum silicate and mixtures thereof. The amount of the thickener can be, for example, 0.05 to 10% by weight, more preferably 0.3 to 5% by weight, based on the weight of the composition.

Powders include chalk, talc, Fullers earth, kaolin, starches, gums, colloidal silica-sodium polyacrylate, tetraalkyl and/or trialkylaryl ammonium montmorillonites, chemically modified magnesium aluminum silicates, organically modified montmorillonite clays, hydrated aluminum silicates, fumed silica, carboxyvinyl polymers, sodium carboxymethylcellulose, and ethylene glycol monostearate.

The cosmetic composition of the present invention preferably comprises a non-silica hydrophilic inorganic thickener that swells by embedding a polar liquid. Preferably, the composition comprises 0.5 to 10% by weight of the hydrophilic inorganic thickener. This amount will depend on several other factors, such as the weight percentage of the microspheres and the nature of the cosmetic composition, i.e., a cream or lotion or gel. The term non-silica means that the inorganic thickener is not thickening silica or any other silica-based thickener. More preferably, the composition of the present invention comprises 0.5 to 5% by weight, most preferably 0.5 to 3% by weight of a non-silica hydrophilic inorganic. Preferably, the inorganic thickener is at least one of magnesium aluminum silicate, layered silicate, montmorillonite, lepidolite, bentonite, montmorillonite or layered silicate. More preferably, the inorganic thickener is montmorillonite or magnesium aluminum silicate.

系列增稠剂，例如NormalFast Ultra、

K、

HV、

PURE、

CH、

HS、

D、

Ultra和VANATURAL系列增稠剂，例如

MC。

系列为膨润土类型。Several grades of magnesium aluminum silicate are commercially available, for example,

Series of thickeners, such as NormalFast Ultra,

K.

HV,

PURE,

CH,

HS,

D.

Ultra and VANATURAL series thickeners, such as

MC.

Series is bentonite type.

XGB(膨润土和黄原胶)。其他实例包括VAN GEL SX(蒙脱石粘土和黄原胶)和VEEGUM CER(蒙脱石粘土和纤维素胶)。其他这类共混物可包括聚丙烯酸酯、卡波姆、纤维素、羧甲基纤维素钠、羟乙基纤维素、羟丙基纤维素、羟丙基甲基纤维素、甲基纤维素、黄原胶、卡拉胶钠、海藻酸钠、羟丙基瓜尔胶、阿拉伯胶(gum arabic/acacia)或黄蓍胶。Although not required, magnesium aluminum silicate or montmorillonite may be used in combination or blend with a natural organic gum or natural organic thickener. Examples are

XGB (bentonite and xanthan gum). Other examples include VAN GEL SX (montmorillonite clay and xanthan gum) and VEEGUM CER (montmorillonite clay and cellulose gum). Other such blends may include polyacrylates, carbomers, cellulose, sodium carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylcellulose, xanthan gum, sodium carrageenan, sodium alginate, hydroxypropyl guar, gum arabic (acacia), or tragacanth.

Other preferred forms of montmorillonite include sodium magnesium silicate, organically modified montmorillonites, including tetraalkyl and/or trialkyl ammonium montmorillonites (organically modified montmorillonite clays), such as quaternary ammonium-18 bentonite, quaternary ammonium-18-hectorite, stearalkonium bentonite and stearalkonium hectorite; and mixtures thereof.

As used herein, "polysiloxane elastomer" refers to a deformable organopolysiloxane having viscoelastic properties. Preferably, the cosmetic composition comprises a polysiloxane elastomer.

Preferably the polysiloxane elastomer is crosslinked.The polysiloxane elastomer may be obtained from a curable organopolysiloxane. Examples of this are: addition-reaction-curing organopolysiloxane compositions that cure by an addition reaction between a SiH-containing diorganopolysiloxane and an organopolysiloxane having silicon-bonded vinyl groups under platinum metal catalysis; condensation-curing organopolysiloxane compositions that cure by a dehydrogenation reaction between a hydroxy-terminated diorganopolysiloxane and a SiH-containing diorganopolysiloxane in the presence of an organotin compound; condensation-curing organopolysiloxane compositions that cure by a condensation reaction between a hydroxy-terminated diorganopolysilane and a hydrolyzable organosilane in the presence of an organotin compound or a titanate (the condensation reaction is exemplified by a dehydration reaction, alcohololysis, oximeolysis, aminationolysis, amidolysis, carboxylation, and ketoneolysis); peroxide-curing organopolysiloxane compositions that are thermally cured in the presence of an organic peroxide catalyst; and organopolysiloxane compositions that are cured by high-energy radiation, such as by gamma rays, ultraviolet rays, or electron beams. The polysiloxane elastomer is preferably obtained by addition reaction curing of an organopolysiloxane composition which cures by an addition reaction between a SiH-containing diorganopolysilane and an organopolysilane having silicon-bonded vinyl groups under platinum metal catalysis.

The polysiloxane elastomer can be an emulsifying or non-emulsifying crosslinked polysiloxane elastomer or a combination thereof, but preferably the polysiloxane elastomer is non-emulsifying. As used herein, the term "non-emulsifying" defines a crosslinked polysiloxane elastomer in which no polyoxyalkylene units are present. As used herein, the term "emulsifying" refers to a crosslinked organopolysiloxane elastomer having at least one polyoxyalkylene (e.g., polyoxyethylene or polyoxypropylene) unit.

Preferred silicone elastomers are organopolysiloxanes available under the INCI names Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer and Polysilicone-1 1. More preferably, the silicone elastomer is Dimethicone/Vinyl Dimethicone Crosspolymer.

Preferably, the cosmetic composition of the present invention comprises 0.1 to 10% by weight, more preferably 0.5 to 8% by weight, even more preferably 1 to 5% by weight of silicone elastomer.

The composition of the present invention may comprise 1 to 25 wt % of a fatty acid or 0.1 to 80 wt % of a soap, based on the weight of the composition. A mixture of a fatty acid and a soap is also suitable, for example, to form a vanishing cream base that gives a matte feel to the skin. Particularly preferred are C _12-20 fatty acids, more preferably C _14-18 fatty acids. The most preferred fatty acids are stearic acid, myristic acid, or a mixture thereof. When present, the composition comprises 5 to 20 wt % of a fatty acid or soap. The soap in the hydrophobic material may comprise an alkali metal salt of a fatty acid, such as a sodium salt or potassium salt, most preferably potassium stearate. Typically, the vanishing cream base in the cosmetic composition is prepared by taking a desired amount of total fatty matter and mixing it with a desired amount of potassium hydroxide. Soap is typically formed in situ during the mixing process.

Preferably, the composition comprises a whitening pigment. Whitening pigments are generally particles of high refractive index materials. For example, whitening pigments can have a refractive index greater than 1.3, more preferably greater than 1.8, most preferably 2.0 to 2.7. Examples of such whitening pigments are those comprising bismuth oxychloride, barium sulfate, mica, silicon dioxide, titanium dioxide, zirconium oxide, aluminum oxide, zinc oxide or a combination thereof. A more preferred whitening pigment is a particle comprising titanium dioxide, zinc oxide, zirconium oxide, mica, iron oxide or a combination thereof. Even more preferred whitening pigments are particles comprising zinc oxide, zirconium oxide, titanium dioxide or a combination thereof, because these materials have a particularly high refractive index. Even more preferably, the whitening pigment is selected from titanium dioxide, zinc oxide or a mixture thereof, and the most preferred whitening pigment is titanium dioxide.

The average diameter of the whitening pigment is generally from 15 nm to 2 μm, more preferably from 35 nm to 800 nm, even more preferably from 50 nm to 500 nm, and even more preferably from 100 to 300 nm. The diameter of the whitening pigment refers to the diameter of the particles in an unaggregated state. In the absence of a well-defined sphere, the diameter refers to the maximum measurable distance on the particle. The average diameter can be measured, for example, by scanning electron microscopy (SEM) or transmission electron microscopy (TEM) by averaging the values of at least one hundred particles.

Preferably, the composition comprises 0.001 to 10 wt% whitening pigment, more preferably 0.01 to 6 wt%, still more preferably 0.1 to 3 wt%, most preferably 0.2 to 2 wt% whitening pigment.

The cosmetic composition of the present invention may also contain other ingredients commonly used in the art to enhance physical properties and performance. Suitable ingredients include, but are not limited to, adhesives, colorants and pigments, pH adjusters, preservatives, optical agents, fragrances, viscosity modifiers and biological additives, buffers, conditioners, natural extracts, essential oils and skin benefit agents, including anti-inflammatory agents, cooling agents, antiperspirants, anti-aging agents, anti-acne agents, antimicrobial agents and antioxidants.

The composition can be formulated in any known form. In addition, the cosmetic composition of the present invention can be a leave-on or rinse-off composition, more preferably, the cosmetic composition of the present invention is a leave-on cosmetic. Further preferably, the cosmetic composition of the present invention is a cream, gel-cream or lotion.

The skin care compositions of the present invention are compositions suitable for topical application to human skin, including leave-on and rinse-off products. The term "leave-on" as used in connection with the compositions herein refers to compositions that are applied or rubbed onto the skin and left thereon. The term "rinse-off" as used in connection with the compositions herein refers to skin cleansers that are applied or rubbed onto the skin and rinsed off substantially immediately after application.

The packaging of the composition of the present invention may be in jars or tubes and any other form commonly used for cosmetic, cream, wash and lotion type products. The composition may be applied topically and preferably 1 to 4 mg of the composition is applied per square centimeter of skin.

Uses and methods

According to a second aspect, the use of the cosmetic composition of the first aspect for improving at least one property of the skin is disclosed. Preferably, the at least one property is oil control, moisturizing, skin lightening or skin pores invisible. Further preferably, at least two of the above properties are improved. More preferably, three of the above properties are improved. Further preferably, all four properties are improved.

Oil Control

Preferably, the composition provides facial oil control for at least 12 hours after a single application. Sebum is skin oil produced by sebocytes (cells of the sebaceous glands in the skin) and then secreted to the surface of the skin. "Oily skin" is a common and unwelcome skin condition caused by an excess of sebum on the skin. Oily skin is associated with shine, an unwelcome appearance and an unpleasant touch, and affects different age groups. Typically, the degree of oil control is measured by a tool called a Sebumeter, and is usually on a person's forehead.

Moisturizing

In another aspect, the use of the composition of the first aspect for moisturizing the face for at least 8 hours after a single application is disclosed. Preferably, a Corneometer is used for the analysis. The Corneometer CM82OPC (Courage & Khazaha, Kohl, Germany) is an instrument widely used in the cosmetics industry. It allows high-frequency, alternating voltage electrical measurements of skin capacitance to be safely made via electrodes applied to the skin surface. The parameters measured have been found to vary with skin moisture content. However, they may also vary with many other factors, such as skin temperature, sweat gland activity and the composition of any applied product. The Corneometer can only give a directional change in the moisture content of the upper stratum corneum in favorable circumstances, but even here, a quantitative interpretation may prove to be misleading.

Skin Brightening

In another aspect, the composition of the first aspect is used to provide facial skin lightening for at least 4 hours and up to 12 hours after a single application. Preferably, the degree of lightening is measured using a spectrophotometer and expressed using an L* value. Further preferably, on the forehead of a subject.

Reduces pores

分析，光设置优选为CP、PP、S1和S2照明模式。In another aspect, the use of the composition of the first aspect for reducing visible pores on facial skin for at least 4 hours and up to 12 hours after a single application is disclosed. Preferably, pore invisibility is measured as pore invisibility on the front, left and right sides of the subject's face. Use

From the analysis, the light settings are preferably CP, PP, S1 and S2 lighting modes.

method

According to another aspect, a method of improving at least one property of skin is disclosed, comprising treating the skin with the cosmetic composition of the first aspect.

Preferably, the at least one property is oil control, moisturizing, skin lightening or skin pore concealing. Preferably at least three properties are improved.

Preferably, in this method, the composition provides facial oil control for at least 12 hours after a single application.

Preferably, in this method, the composition provides facial moisturization for at least 8 hours after a single application.

Preferably, in this method, the composition provides facial lightening for at least 4 hours and up to 12 hours after a single application.

Preferably, in this method, the composition reduces visible pores on the facial skin for at least 4 hours and up to 12 hours after a single application.

All other preferred features described under use of the composition apply mutatis mutandis to this aspect of the invention.

The following examples are provided to facilitate the understanding of the present invention. The examples are not intended to limit the scope of the claims.

Example

Example 1

For this experiment, a cosmetic face cream was formulated. The composition is described in Table 1.

Table 1

Element weight% Aluminum starch octenylsuccinate; 7.2 glycerin 2.4 Natrasorb HFB 2.4 Cyclopentasiloxane DC 245 2.2 Dimethicone 350cst 1.6 Betaine 0.7 Viscoptima SE 0.6 Niacinamide 0.4 Water and minors 100.0

test:

The cream was tested against a control cream on volunteers aged 18 to 45 years, with a 50:50 ratio of oily skin: normal and dry skin (measured according to Sebumeter), with visible pores on the face. The volunteers were acclimatized for 10 to 15 minutes at a temperature of 22°C ± 5°C and a relative humidity of 30% ± 10%.

Take the required amount of test product on the fingertips. Apply the test product at different points on the split face (determined according to randomization). Spread the product evenly with the help of four fingers using circular motions for about 1 minute. Ensure even application of the product.

Dermatological and instrumental assessments were performed at baseline, 4 hours, 8 hours, and 12 hours after a single application of the test product according to the details provided below.

Oil Control – Sebumeter – Right and Left Side of Forehead

Moisturizing – Corneometer – Cheeks (left and right)

Lightening (L*) – Spectrophotometer – Right and Left Forehead

Pores Invisible – Visia – Light settings (CP, PP, S1 and S2 lighting modes) front, left and right side of lower face

The data were statistically analyzed and are shown in Table 2.

Table 2

The data in Table 2 show that:

Note that sebum was significantly reduced at 4 hours, 8 hours, and 12 hours compared to baseline, meaning that the test product was effective in sebum control at 12 hours. For the untreated sample, a significant increase in sebum was observed at 4, 8, and 12 hours compared to baseline. At all time points, sebum was significantly reduced compared to the untreated control, meaning that the test product was effective in sebum control 12 hours after product application.

Significant improvement in moisturization was noted at 4 hours compared to baseline. Skin moisturization persisted at 8 hours compared to baseline.

The untreated samples showed significant deterioration compared to baseline at 4, 8, and 12 hours.

Note that moisturization was significantly improved at all time points compared to the untreated control, meaning that the test product was effective in maintaining moisturization for 12 hours compared to the untreated control.

In Composition 1, it was noted that L* was significantly higher at 4 hours, 8 hours, and 12 hours compared to baseline. For the untreated sample, it was noted that L* was significantly lower at 4 hours compared to baseline. Compared to the untreated control, L* was significantly higher at all time points, which means that the test product was better compared to the untreated control group. The test product was effective in providing skin lightening after a single application.

In the case of pore invisibility, it was noted that the mean values were significantly smaller at 4 hours, 8 hours, and 12 hours compared to baseline, meaning that the test product was effective in reducing pore visibility. For the untreated samples, no changes in pore visibility were observed at any time point studied compared to baseline. At all time points, pore visibility was significantly reduced compared to the untreated control group, meaning that the test product was effective in making pores invisible within 12 hours after product application.

Claims (14)

1. A cosmetic composition comprising: i) aluminum starch octenyl succinate; and ii) ingredients whose INCI names are Aluminum Starch Octenylsuccinate (and) Acrylate Copolymer (and) Magnesium Carbonate; Wherein in said composition, the INCI name is aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate The weight ratio of said composition to said aluminum starch octenyl succinate is 1:0.5 to 1:5. 2. Cosmetic composition according to claim 1, wherein said composition comprises 0.1 to 5% by weight of aluminum starch octenyl succinate (and) acrylate copolymer (and) magnesium carbonate of the ingredients. 3. The cosmetic composition according to claim 1 or 2, wherein said composition comprises 0.5 to 15% by weight of said aluminum starch octenylsuccinate. 4. Cosmetic composition according to one of claims 1 to 3, wherein the composition comprises a polyacrylate emulsifier or a polyacrylate-containing emulsifier. 5. The cosmetic composition according to claim 4, wherein the emulsifier is shear thinning and non-thixotropic. 6. The cosmetic composition according to claim 5, wherein the emulsifier is self-emulsifying and comprises an inverting surfactant. 7. The cosmetic composition according to any one of claims 4 to 6, wherein said shear-thinning, non-thixotropic, self-emulsifying rheology modifier is a polymeric rheology modifier dispersed in a carrier oil containing an inverting surfactant. Acrylate polymer. 8. The cosmetic composition according to claim 7, wherein said emulsifier is INCI name sodium polyacrylate (and) ethylhexyl cocoate (and) PPG-3 benzyl ether myristate (and ) Polysorbate 20 substances. 9. Use of a cosmetic composition according to one of claims 1 to 8 for improving at least one property of the skin. 10. The use according to claim 9, wherein said at least one property is oil control, moisturizing, skin lightening or skin pore invisible. 11. Use according to claim 10, wherein at least three properties are improved. 12. Use according to claim 10 or 11, wherein the composition provides facial oil control for at least 12 hours after a single application. 13. The use according to claim 10 or 11, wherein the composition provides facial moisturizing for at least 8 hours after a single application. 14. Method of improving at least one property of the skin, comprising treating the skin with a cosmetic composition according to one of claims 1 to 8.